Taking once during as the study area, course by using DPSIR model and a lot of literatures screening high frequency index, quantitative analysis combined with expert appraisal method, on regionalization index system establishment, planning method was studied, determining topographical features, water loss soil erosion prevention control system, land exploitation utilization direction, after yea...

Multifunctional agriculture (MFA) has emerged as a key concept in science and politics with respect to the future of agriculture and rural development in the recent decade. Overall, MFA implies that in addition to their main function in production and support of rural livelihood, the agricultural activities have some other advantages for the environment including the conservation of water and s...

where ψ is soil moisture pressure head, C(ψ) is specific water capacity, K(ψ) is unsaturated hydraulic conductivity, S(ψ) is a sink or source term, t is time, x is the horizontal axis, and z is the vertical axis which is considered positive downward. Equation (1.1) is an approximation within the context of the theory of mixtures. It is studied here in the form (1.1) as a first step. An introduc...

wetlands as water resources have a special place in the semi-arid plateau of iran and boundary determination is necessary for their effective conservation and conflict resolution among stakeholders that are dependent on these resources. determination of the wetland boundaries should be commensurate with environmental features affecting on it which normally extend beyond water extent. ecological...

Taken 1:10000 Scale topographic map in the small watershed of Genxi River as an example, under the support of ARCVIEW and ARC/INFO software of GIS, through digitizing topographic map and other special maps to set up a spatial geodatabase. This paper forms a digital elevation model and has an analysis of slope and aspect, also discovered knowledge referenced for soil and water conservation. The ...

Agriculture is a source for three primary greenhouse gases (GHGs): CO2, CH4, and N2O. It can also be a sink for CO2 through C sequestration into biomass products and soil organic matter. We summarized the literature on GHG emissions and C sequestration, providing a perspective on how agriculture can reduce its GHG burden and how it can help to mitigate GHG emissions through conservation measure...

rangelands are the main sources of forage for livestock feeding by localpeople. beside forage production, rangeland ecosystems provide many other goods andservices such as medicinal plants, recreation, soil and water conservation, wildlife habitat,fishing, hunting, hiking, etc. nevertheless, there are no much information about the waythat local communities think about the rangelands goods and s...

Agriculture is a source for three primary greenhouse gases (GHGs): CO(2), CH(4), and N(2)O. It can also be a sink for CO(2) through C sequestration into biomass products and soil organic matter. We summarized the literature on GHG emissions and C sequestration, providing a perspective on how agriculture can reduce its GHG burden and how it can help to mitigate GHG emissions through conservation...